122516252423 has 4 divisors (see below), whose sum is σ = 122529738168. Its totient is φ = 122502766680.

The previous prime is 122516252413. The next prime is 122516252449. The reversal of 122516252423 is 324252615221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324252615221 = 9091 ⋅35667431.

It is a cyclic number.

It is not a de Polignac number, because 122516252423 - 2¹⁸ = 122515990279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122516252413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6729236 + ... + 6747417.

It is an arithmetic number, because the mean of its divisors is an integer number (30632434542).

Almost surely, 2^122516252423 is an apocalyptic number.

122516252423 is a deficient number, since it is larger than the sum of its proper divisors (13485745).

122516252423 is an equidigital number, since it uses as much as digits as its factorization.

122516252423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13485744.

The product of its digits is 57600, while the sum is 35.

Adding to 122516252423 its reverse (324252615221), we get a palindrome (446768867644).

The spelling of 122516252423 in words is "one hundred twenty-two billion, five hundred sixteen million, two hundred fifty-two thousand, four hundred twenty-three".